Using electronic sweep mirror, electronic prober and energy spectrum meter to investigate the groove shape wear of a cutting tool, while numerical controlled turning the pure nickle.

本文对数控车削纯镍时刀具的沟槽磨损问题，应用扫描电镜、电子探针、俄歇能谱仪等进行了探讨。

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Because there exists a chip-curling groove on the rake face, the rake face of a modern cutting tool used on NC machine tool is not a plane, but a curved surface.

由于现代数控刀具都设计有卷屑槽，从而使其前刀面不是平面，而是曲面。

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Hollow shaft type high pressure cooling system is used to solve the problem in deep drilling, as well as gun-drill with open groove, proper cutting consumption and single tool withdraw are applied.

笔者主要阐述了数控深孔钻床在使用枪钻进行深孔加工时工艺参数的选择，寻求最佳加工性能，以求达到快速加工、提高效率的目的。

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